About 8am this morning (21st Jan) I was driving up the A322 from Jct 6 on the M4 towards Slough town centre, near the Marriott roundabout, & there was an Electroclash Grey 100HP with the registration beginning WP07 going towards Slough town centre too. I turned right along the A4 towards Slough & I believe the other 100HP carried straight on which headed towards Beaconsfield.

Was it you? You have the same colour 100HP as me, although my plate begins RF56!